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--Whendidyoubecomeavolunteerfortheelderly?--Twoyearsago...

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問題詳情:

--Whendidyoubecomeavolunteerfortheelderly?--Twoyearsago...

--When did you become a volunteer fo r the elderly?

-- Two years ago. I        this group since then.

A. joined       B. took part in      C. have joined      D. have been in

【回答】

D

知識點:動詞時態

題型:選擇題

Tags:Twoyearsago